/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.execution;

public interface SchedulerStatsTracker
{
    SchedulerStatsTracker NOOP = new SchedulerStatsTracker()
    {
        @Override
        public void recordTaskUpdateDeliveredTime(long nanos) {}

        @Override
        public void recordTaskUpdateSerializedCpuTime(long nanos) {}

        @Override
        public void recordTaskPlanSerializedCpuTime(long nanos) {}

        @Override
        public void recordEventLoopMethodExecutionCpuTime(long nanos) {}
    };

    void recordTaskUpdateDeliveredTime(long nanos);

    void recordTaskUpdateSerializedCpuTime(long nanos);

    void recordTaskPlanSerializedCpuTime(long nanos);

    void recordEventLoopMethodExecutionCpuTime(long nanos);
}
